Papa’s after fruit stout (5)
I believe the answer is:
plump
'stout' is the definition.
(I've seen this before)
'papa's after fruit' is the wordplay.
'papa' becomes 'P' (phonetic alphabet: alpha, bravo, charlie etc.).
'after' is a charade indicator (letters next to each other).
'fruit' becomes 'plum' (plum is a kind of fruit).
'p' after 'plum' is 'PLUMP'.
(Other definitions for plump that I've seen before include "Rather fat" , "Slightly fat" , "Having a full rounded shape" , "Buxom, chubby" , "Portly" .)